sal/rtl/surrogates.hxx

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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
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  19
  20 #ifndef INCLUDED_SAL_RTL_SOURCE_SURROGATES_HXX
  21 #define INCLUDED_SAL_RTL_SOURCE_SURROGATES_HXX
  22
  23 #include "sal/config.h"
  24
  25 #define SAL_RTL_FIRST_HIGH_SURROGATE 0xD800
  26 #define SAL_RTL_LAST_HIGH_SURROGATE 0xDBFF
  27 #define SAL_RTL_FIRST_LOW_SURROGATE 0xDC00
  28 #define SAL_RTL_LAST_LOW_SURROGATE 0xDFFF
  29
  30 #define SAL_RTL_IS_HIGH_SURROGATE(utf16) \
  31     ((utf16) >= SAL_RTL_FIRST_HIGH_SURROGATE && \
  32      (utf16) <= SAL_RTL_LAST_HIGH_SURROGATE)
  33
  34 #define SAL_RTL_IS_LOW_SURROGATE(utf16) \
  35     ((utf16) >= SAL_RTL_FIRST_LOW_SURROGATE && \
  36      (utf16) <= SAL_RTL_LAST_LOW_SURROGATE)
  37
  38 #define SAL_RTL_COMBINE_SURROGATES(high, low) \
  39     ((((high) - SAL_RTL_FIRST_HIGH_SURROGATE) << 10) + \
  40      ((low) - SAL_RTL_FIRST_LOW_SURROGATE) + 0x10000)
  41
  42 #endif
  43
  44 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */